Engineering Worksheet: Constraints and Criteria

Engineering lesson 4: Constraints and criteria · Set 123 · 40 questions

Engineer's tip (Limits and goals): Constraint = a limit on money, materials, time or size. Criterion = a goal: what the design must do. Check both with numbers: money left ÷ price for how many you can buy; result ≥ goal for “meets it”.

1. 1.📋 Your team’s budget is ₹22. You must buy one roll of tape for ₹10. Straws cost ₹1 each. What is the greatest number of straws you can buy?
2. 2.📋 Your team’s budget is ₹55. You must buy one roll of tape for ₹20. Straws cost ₹2 each. What is the greatest number of straws you can buy?
3. 3.True or false: “use only paper and tape” is a constraint (a limit). (a) False (b) True
4. 4.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 850 g. Does it meet the criterion? (a) No (b) Yes
5. 5.📋 Your team’s budget is ₹47. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
6. 6.📋 Your team’s budget is ₹95. You must buy one roll of tape for ₹20. Straws cost ₹3 each. What is the greatest number of straws you can buy?
7. 7.📋 Criteria are … (a) the tools you use (b) goals a design must meet (c) the team names (d) the limits on money
8. 8.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a constraint (b) a criterion
9. 9.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a criterion (b) a constraint
10. 10.📋 Criterion: the model bridge must hold at least 300 g. In the test it held 150 g. Does it meet the criterion? (a) Yes (b) No
11. 11.📋 For a model bridge challenge, is “hold up 500 g” a constraint or a criterion? (a) a constraint (b) a criterion
12. 12.True or false: “use at most 20 straws” is a criterion (a goal). (a) True (b) False
13. 13.📋 Your team’s budget is ₹37. You must buy one roll of tape for ₹15. Straws cost ₹3 each. What is the greatest number of straws you can buy?
14. 14.🔍 Which is the odd one out? (a) lift a cup of water (b) use only paper and tape (c) spend at most ₹100 (d) finish in 40 minutes
15. 15.📋 For a model bridge challenge, is “roll at least 2 metres” a constraint or a criterion? (a) a constraint (b) a criterion
16. 16.True or false: “spend at most ₹100” is a criterion (a goal). (a) True (b) False
17. 17.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 650 g. Does it meet the criterion? (a) No (b) Yes
18. 18.📋 Criterion: the model bridge must hold at least 800 g. In the test it held 750 g. Does it meet the criterion? (a) No (b) Yes
19. 19.True or false: “be under 30 cm tall” is a criterion (a goal). (a) True (b) False
20. 20.📋 Constraint: the tower must be no taller than 40 cm. The team’s tower is 44 cm tall. Is it within the constraint? (a) No (b) Yes
21. 21.📋 Your team’s budget is ₹31. You must buy one roll of tape for ₹10. Straws cost ₹2 each. What is the greatest number of straws you can buy?
22. 22.True or false: “keep ice for 1 hour” is a constraint (a limit). (a) False (b) True
23. 23.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint
24. 24.True or false: “float for 1 minute” is a constraint (a limit). (a) False (b) True
25. 25.True or false: “roll at least 2 metres” is a criterion (a goal). (a) False (b) True
26. 26.📋 Your team’s budget is ₹81. You must buy one roll of tape for ₹20. Straws cost ₹4 each. What is the greatest number of straws you can buy?
27. 27.📋 A constraint is … (a) a goal for success (b) a limit you must keep to (c) a final test (d) a kind of glue
28. 28.True or false: “lift a cup of water” is a constraint (a limit). (a) True (b) False
29. 29.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a constraint (b) a criterion
30. 30.📋 Constraint: the tower must be no taller than 100 cm. The team’s tower is 94 cm tall. Is it within the constraint? (a) No (b) Yes
31. 31.📋 Constraint: the tower must be no taller than 80 cm. The team’s tower is 84 cm tall. Is it within the constraint? (a) No (b) Yes
32. 32.📋 Criterion: the model bridge must hold at least 1000 g. In the test it held 1150 g. Does it meet the criterion? (a) Yes (b) No
33. 33.True or false: “be under 30 cm tall” is a constraint (a limit). (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) finish in 40 minutes (b) spend at most ₹100 (c) float for 1 minute (d) use only paper and tape
35. 35.🔍 Which is the odd one out? (a) keep ice for 1 hour (b) carry 10 coins (c) hold up 500 g (d) use only paper and tape
36. 36.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 26 cm tall. Is it within the constraint? (a) No (b) Yes
37. 37.True or false: “spend at most ₹100” is a constraint (a limit). (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) use only paper and tape (b) spend at most ₹100 (c) use at most 20 straws (d) stand in a fan breeze
39. 39.🔍 Which is the odd one out? (a) finish in 40 minutes (b) keep ice for 1 hour (c) lift a cup of water (d) float for 1 minute
40. 40.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) only if it is red (b) yes, always (c) no, it breaks a limit (d) yes, it works

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